Runway Rendezvous: Kathy Hilton's Unplanned Stroll at Sutton Stracke's Fashion Show Almost Leads to Model Mishap trucc

'The Real Housewives of Beverly Hills' airs Tuesdays at 8 p.m. ET on Bravo

It’s Kathy Hilton’s world, and we’re just living in it!

In PEOPLE's exclusive clip from the upcoming March 4 episode of The Real Housewives of Beverly Hills, Sutton Stracke’s nerves are high as she puts on her first-ever fashion show. After Sutton says she’s “feeling petrified,” Kathy decides to get out of her seat just as the show is about to begin.

“What is she doing?” her sister Kyle Richards questions.

“Oh, God, Kathy!” Garcelle Beauvais shouts before telling Kyle: “You better grab your sister. Grab your sister right now.”

“Don't look at me, she's only my sister,” Kyle says as Garcelle jokingly tells her, “You are responsible!”

After she walked the runway to get backstage, Kathy offers up help — from Dorit Kemsley.

“Sutton, do you need Dorit?” Kathy asks, volunteering her castmate. “She would be happy to introduce and she can do all the narrating.”

Sutton, however, was not too keen on the idea. 

“No, we're not narrating, we're not doing that,” she replies. “It's like a real fashion show.”

“I know!” Kathy quips, but Sutton insists that “you don't narrate a fashion show.”

“Fashion shows don't get emceed,” Sutton says in her confessional. “This is not 1955, when people were like, ‘Oh and here's the red dress and corduroy,’ no!”

“And the person that you want to do it is Dorit — obviously, you're deranged,” she continues, referring to the ongoing conflict between her and Dorit throughout the season. 

Just as Sutton declares that she’s ready to start the show, Kathy appears front and center on the runway.

“I'm leaving,” Kyle laughs as she holds her purse up to cover her face in embarrassment.

Bozoma Saint John then joins in on Garcelle’s efforts for Kyle to get her sister under control: “Kyle, go get her!”

“What is she doing?” Dorit exclaims. “And she’s limping,” Kyle adds.

In true Kathy fashion, she slowly makes her way down the runway, even stopping to chat with people in the audience. At the same time, the first model walks out and nearly collides with Kathy.

“Kathy! Get out of the way!” Kyle blurts out, leaving her jaw wide open in shock. 

The Real Housewives of Beverly Hills airs Tuesdays at 8 p.m. ET on Bravo and is available to stream the next day on Peacock.